Patents by Inventor Ronald Wallenius

Ronald Wallenius has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5531044
    Abstract: This invention provides a landscape edging device (10) including a polyvinylchloride pipe (22) having longitudinally spaced bores (24) extending vertically therethrough and spikes (31) disposed to extend substantially vertically through the bores (24) and into the ground to secure the device (10) to the ground. The spikes (31) include head portions (32) and shank portions (34). The head portions (32) have larger outer head diameters (36) than the diameters (38) of the bores (24) and the shank portions (34) have outer shank diameters (39) smaller than the diameters (38) of the bores (24), whereby the bores (24) are adapted to receive the shank portions (34) and the head portions (32) cooperatively engage the elongated member (20) proximate the corresponding bores (24).The invention also relates to an improved method of installing such a landscape edging device (10). The first step involves digging a trench (60) in the ground intermediate a first earth surface (52) and an adjacent earth surface (54).
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: July 2, 1996
    Inventor: Ronald Wallenius